242 ENDOSPOREAE [ARCYRIA 



This rare and beautiful species has been found twice only, in the 

 summer of two successive years, by Mr. Kumagusu Minakata. It 

 appeared on a rotting limb of a Chinese Camphor-tree (Machilus Thun- 

 bergii Sieb. & Zucc.) growing by a shrine of the Shinto monkey-god at 

 Itoda, in the province of Kii, Japan. The shrine has since been removed 

 and the grove surrounding it cut down. When freshly gathered, A. 

 glauca is of a pale glaucous or bluish-green colour ; after a time it fades 

 to greenish-drab. The markings of the capillitium somewhat resemble 

 those of A. insignis. 



Hob. On dead wood.— Kii, Japan (B.M. 3072). 



10. A. incarnata Pers. Obs. Myc, i. 58, t, v, figs. 4, 5 (1796). 

 Plasmodium white. Sporangia stalked or nearly sessile, 

 crowded, subcylindrical or ellipsoid, 1 to 1-5 mm. high, 0-6 mm. 

 broad, pink or flesh-coloured ; cup of sporangium-wall mem- 

 branous, even or interruptedly plicate, spinulose. Stalk 

 weak, 0-1 to 0-3 mm. long, flesh-coloured, filled with spore- 

 like cells. Capillitium a very loose elastic network of pale 

 pink threads, 3 to 5 p. diani., sparingly and somewhat irregu- 

 larly branched, with here and there broad perforated or ring- 

 like expansions, often swollen at the axils of the branches ; 

 thickenings in the form of sharp cogs, half rings, or spines 

 arranged in a loose spiral, and of minute scattered spinules ; 

 free ends more or less numerous, clavate or pointed, 

 spinose. Spores pale pink, smooth or with a few scattered 

 warts, 6 to 8 /x diam.— Post. Mon., p. 275 ; Mass. Mon., 145 ; 

 Macbr. N. Am. Slime-Moulds, 193. Stemonitis incarnata Pers. 

 in Gmel. Syst. Nat., 1467 (1791). S. cornea Trentep. in 

 Roth Catal. Bot., i. 222 (1797)? S. globosa Trentep. I.e. ? 

 Clathrus adnatus Batsch Elench. Fung., 141 (1783) ? 

 Trichia flexuosa Schum. Enum. PL Saell., ii. 209 (1803). 

 Arcyria lilacina Schum. I.e., 212. A. minor Schwein. in 

 Trans. Amer. Phil. Soc, n. s. iv. 259 (1832) ? A. adnataRo&t. 

 Mon., App. p. 36 (1876). A. irregularis Racib. in Rozpr. Mat. 

 Przyr. Ak. Krak., xii. 83 (1884). 



Var. fulgens Lister : sporangia crimson ; stalks firm, dark 

 reddish-brown.—^, affinis Rost. Mon., p. 276 (1875) ? A. 

 similis Racib. in Rozpr. Mat. Przyr. Ak. Krak., xii. 81 (1884) ? 



PI. 177. — a. sporangia ; b. capillitium and spore, with fragment of sporangium-wall ; 

 (England). 



This species is closely allied to A. denudata, from which it is chiefly 

 distinguished by the capillitium having free ends and being without 

 attachments to the cup, and by the more diffusely expanding net ; 

 intermediate forms are of not infrequent occurrence. 



Hob. On dead wood.— Devon (B.M.1509) ; Epping Forest, Essex 

 (B M 1510) ; Batheaston, Somerset (B.M. 270) ; Sutton Park, Warwick 

 (B.M.1511) ; Liverpool (B.M. 3073) ; North Wales (B.M. 3074) ; Edin- 

 burgh (K. 886) ; Ireland (B.M. 3075) ; France (Paris Herb.) ; Germany 

 (B.M. 719) ; Norway (B.M. 3076) ; Finland (B.M. 704a) ; Poland 



